How Bus Booking Platforms Prevent Duplicate Seat Selection
Ever wondered how your seat gets booked instantly, even when thousands pick the same seat at the same moment? Learn how real-time seat locking and payment commit consistency keep bus ticketing fair and fast.
Ever wondered how your seat gets booked instantly… even when thousands pick the same seat at the same moment?
When you select a seat, the system immediately locks that seat in the backend so no one else can choose it during that moment.
After your payment succeeds, the reservation is written to the database and only then your Ticket ID is generated.
That's how bus platforms maintain fairness and prevent duplicate bookings — even during peak holiday rush.
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How It Works (Tech Breakdown)
- Seat Locking: Redis / ElastiCache
- Payments: Razorpay / PayU / Stripe / Paytm
- Ledger: PostgreSQL / MySQL / Aurora
- Performance: CloudFront / Cloudflare
- Events: Kafka / SQS
This is how RedBus-style platforms stay fast, fair, and conflict-free.
Which breakdown should I post next?
Flight booking / Zomato / Swiggy / UPI? Comment and tell me.
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About the Author
Chandu Poloju is a web developer passionate about building resilient systems and sharing knowledge with the developer community.